Self-sealing chest drain connector that prevents tubing winding and bedrail passage

Abstract

Provided in the present invention is a self-sealing chest drain connector that prevents tubing winding and bedrail passage. The connector effectively solves the problems whereby when existing chest drains are in use, a patient needs to pass a drain through a bedrail when getting onto or off a bed, leading to difficult and cumbersome operations, and easily causing backflow into chests. In addition, the connector also solves the problem in the prior art whereby drains are easily triggered, causing secondary injuries. The technical solution to be solved by the present invention is: the connector comprises a main body, wherein a liquid outlet is provided at the right end of the main body, a three-way tube is provided on the left side of the main body, and two movable units are provided between the three-way tube and the main body; each movable unit comprises a rectangular rod, two rectangular rods being hinged by means of a torsion spring; an arc-shaped tube is provided at one end of each rectangular rod, a channel is provided in the main body, the left end of the arc-shaped tube is in communication with the three-way tube by means of a hose, and small holes are provided in a side wall of the right end of the arc-shaped tube; a sliding sleeve is mounted at the right end of the arc-shaped tube; and a rectangular cylinder is sleeved on each rectangular rod, rectangular cylinders in the two movable units are connected by means of a plurality of steel wires, a compression spring is sleeved on each rectangular rod, and a bent plate is provided on one side of the rectangular cylinder.

Description

Self-sealing thoracic drainage tube free-winding over the rail joint TECHNICAL FIELD

[0001] The present application relates to the technical field of thoracic drainage, in particular to a self-sealing thoracic drainage tube free-winding over the rail joint. BACKGROUND

[0002] After thoracic surgery, a negative pressure thoracic drainage bottle is needed, which guides the liquid in the cavity out through the drainage tube to achieve the purpose of pollution purification. At present, when the patient lies down to rest, the bed rail is raised and plays a protective role, the drainage bottle is vertically hung on one side under the sickbed, when getting off the bed, the drainage tube needs to be folded back to stop the flow, then the drainage bottle is put through the bed rail, after the bed rail is put down, the drainage tube is loosened under the premise of ensuring that the drainage bottle is lower than the chest, and finally the patient slowly gets up and keeps the drainage bottle lower than the knee and stable. Going out for examination and activity also need to get off the bed, and the operation is carried out according to the above. There are obvious defects in the above process: first, according to the requirement, the drainage bottle should always be kept lower than the chest cavity, and the drainage bottle should be kept lower than the chest outlet plane by more than 60 cm, but when the drainage bottle is put up through the bed rail, the height difference between the patient's chest and the drainage bottle is greatly reduced, it is difficult to meet the requirement of 60 cm, and there is also a risk of back suction; second, the operation is troublesome, the drainage tube is folded back first, then the drainage bottle is lifted up and put through the bed rail, and then the patient slowly gets up, the process is complicated and very inconvenient, the experience is very poor, and the nursing efficiency is also low.

[0003] Based on the above basic facts, the present application considers that if the pipe can cross or bypass the bed rail handrail without moving the drainage bottle, the patient will be much more convenient when getting off the bed, and the corresponding back suction risk will be greatly reduced, even completely eliminated. Accordingly, search for existing patent files related to drainage tubes or drainage tube joints, among which CN115054748A Anti-clogging surgical nursing drainage device and drainage method, CN118903648A Thoracic surgery nursing chest tube fixing device, and CN217548638U Drainage device are the closest prior art, which mainly solve the problems of clogging, easy to be pulled off, non-automatic closure after breaking, and difficult to store of the drainage tube, and cannot solve the problem of free-winding and bypassing the rail proposed by the present application.

[0004] In addition, the drainage bottle needs to be replaced regularly, and the existing technology needs to use clamps to close the drainage tube or fold back the drainage tube to close it before replacing it. No matter which way, the drainage tube has the problem of not being closed tightly, if not closed tightly, external air can easily be sucked into the chest cavity, causing infection and leading to pneumothorax, which needs to be improved.

[0005] Last but still important, the existing drainage tube is generally placed randomly at the bedside or stuck on the bed rail with adhesive tape, so the tube often slips or is touched by mistake, causing the end of the drainage tube to displace in the chest cavity and causing secondary injury to the chest cavity. If the drainage tube can be fixed on the bed rail, such phenomena can be greatly avoided. Unfortunately, the prior art also lacks such an arrangement, and it is urgently needed to be solved.

[0006] The present application provides a self-sealing thoracic drainage tube free-winding over the rail joint, so that the drainage tube has the function of crossing obstacles and rails, facilitating the patient to get in and out of bed, avoiding the phenomenon of reverse suction, and being beneficial to the recovery of the patient's chest cavity. At the same time, it can be automatically closed after being disconnected, facilitating the replacement of the drainage bottle. The drainage tube is hung on the bed rail, even if a passer-by accidentally touches the drainage bottle, it will not cause the end of the drainage tube to displace in the chest cavity, avoiding secondary injury to the chest cavity, and being beneficial to the recovery of the patient. SUMMARY

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a self-sealing thoracic drainage tube free-winding over the rail joint, which effectively solves the problem that the existing thoracic drainage tube needs to be passed through the bed rail when the patient gets in and out of bed during use, which is difficult and tedious to operate, and also easily causes the chest cavity to suck back. At the same time, it also solves the problem that the existing technology is easy to be touched and cause secondary injury.

[0008] The technical solution is to include a main body, the right end of the main body is provided with a liquid outlet, the left side of the main body is provided with a three-way pipe, there are two movable units between the three-way pipe and the main body, and the accumulated liquid can reach the liquid outlet through the movable units;

[0009] The movable unit includes a rectangular rod, the rectangular rods in the two movable units are hinged together through a torsion spring; one end of the rectangular rod away from the torsion spring is fixed with an arc-shaped pipe, a passage corresponding to the arc-shaped pipe is formed in the main body, the passage is communicated with the liquid outlet, the left end of the arc-shaped pipe is communicated with the three-way pipe through a hose, the right end of the arc-shaped pipe is closed and inserted into the corresponding passage, and a small hole is formed in the side wall of the right end of the arc-shaped pipe; a slidable sleeve is sleeved on the right end of the arc-shaped pipe, and the sleeve can control the opening and closing of the small hole; when the right end of the arc-shaped pipe is inserted into the passage, the sleeve is separated from the small hole, and the arc-shaped pipe is communicated with the passage through the small hole at this time; a rectangular cylinder is sleeved on the rectangular rod, the rectangular cylinders in the two movable units are connected through a plurality of steel wires, a compression spring is sleeved on the rectangular rod, the compression spring enables the rectangular cylinder to have a reset function, and a bending plate shaped like the arc-shaped pipe is fixed on one side of the rectangular cylinder close to the main body; when one of the bending plates approaches and tightly abuts against the corresponding arc-shaped pipe, at this time, the rectangular pipe drives the rectangular rod in the other movable unit to be just at the hinge of the two rectangular rods through the plurality of steel wires, so that the two rectangular rods cannot be bent and are rigid.

[0010] In order to ensure that the drainage tube is completely closed during the replacement of the drainage bottle, a cross valve is arranged at the liquid outlet, the cross valve comprises a horizontal pipe, a blocking piece is arranged in the middle of the horizontal pipe and is perpendicular to the horizontal pipe, the blocking piece can control the opening and closing of the cross valve, and the right end of the cross valve is communicated with the drainage bottle.

[0011] In order to prevent the liquid in the pipeline and the channel cavity from leaking, the left end of the three-way pipe and the right end of the horizontal pipe in the cross valve are both provided with a self-sealing unit.

[0012] The self-sealing unit comprises a conical blocking block, a first rod is hinged to the periphery of the blocking block through a torsional spring, one end of the first rod away from the blocking block is hinged to a second rod through a torsional spring, and the second rod is hinged to the end of the three-way pipe or the horizontal pipe; the included angle between the first rod and the second rod is small in the natural state, and the blocking block blocks the end of the three-way pipe or the horizontal pipe; when the three-way pipe or the horizontal pipe is inserted into the pipeline, the side wall of the pipeline forces the included angle between the first rod and the second rod to increase, so that the blocking block moves away from the end of the three-way pipe or the horizontal pipe, and the three-way pipe or the horizontal pipe is unblocked.

[0013] In order to prevent the liquid in the channel of the main body from leaking when the cross valve is accidentally separated from the main body, an annular protrusion is arranged in the cavity at the liquid outlet, a baffle is arranged on the left side of the annular protrusion, a tension spring is connected between the baffle and the annular protrusion, a top rod is fixed on the right side of the baffle, and the right end of the top rod is located on the right side of the annular protrusion; when the left end of the horizontal pipe in the cross valve is inserted into the liquid outlet and the baffle is away from the annular protrusion, the channel is communicated with the cavity of the horizontal pipe at this time.

[0014] In order to prevent the liquid in the horizontal pipe cavity from leaking when the cross valve is accidentally separated from the main body, self-sealing units are arranged at the left and right ends of the horizontal pipe.

[0015] In order to facilitate rapid obstacle crossing and facilitate patients to get in and out of bed, a vertical stand plate is arranged at the rear side of the upper movable unit, the left end of the stand plate is hinged to the rectangular rod, the stand plate can swing left and right, the lower edge of the stand plate is located near the hinged position of the rectangular rod, and the right side of the stand plate is closely attached to the main body.

[0016] In order to lock the entire device on the bed rail and avoid the entire device from shaking on the bed rail, a limiting block is arranged in the middle of the stand plate; when the rectangular pipe on the upper side is moved upward and the corresponding bent plate is hung on the limiting block, the rectangular pipe on the lower side wraps the hinged position between the two rectangular rods, and the two rectangular rods are rigid and cannot be bent.

[0017] The structure of the present application is ingenious, the structure enables the drainage tube to have the functions of obstacle crossing and rail crossing, facilitates patients to get in and out of bed, avoids the phenomenon of reverse suction, is beneficial to the recovery of the patient's chest cavity, can be automatically sealed after being disconnected, facilitates the replacement of the drainage bottle, and enables the drainage tube to be hung on the bed rail, so that even if a passerby accidentally touches the drainage bottle, the end of the drainage tube will not be displaced in the chest cavity, thereby avoiding secondary damage to the chest cavity and being beneficial to the recovery of the patient. Attached Figure Description

[0018] Figure 1 is a three-dimensional diagram of the present invention.

[0019] Figure 2 is a three-dimensional exploded view of the present invention.

[0020] Figure 3 is a front view of the present invention.

[0021] Figure 4 is a rear view of the present invention.

[0022] Figure 5 is a schematic diagram of the installation relationship between the main body and the active unit in this invention.

[0023] Figure 6 is a front sectional view of the present invention.

[0024] Figure 7 is a state diagram of the present invention.

[0025] Figure 8 is a second state diagram of the present invention.

[0026] Figure 9 is the third state diagram of the present invention.

[0027] Figure 10 is the fourth state diagram of the present invention.

[0028] Figure 11 is the fifth state diagram of the present invention.

[0029] Figure 12 shows the structure of the cross valve and its self-closing unit in this invention.

[0030] Figure 13 is an exploded view of the cross valve and its self-closing unit in this invention.

[0031] Figure 14 is a structural diagram of the main body and its internal channels in this invention. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] As shown in Figures 1 to 14, the present invention includes a main body 1, a liquid outlet 2 is provided at the right end of the main body 1, a three-way pipe 3 is provided on the left side of the main body 1, and there are two movable units between the three-way pipe 3 and the main body 1, through which the accumulated liquid can reach the liquid outlet 2.

[0034] The activity unit comprises a rectangular rod 4, the rectangular rods 4 in the two activity units are hinged together through a torsion spring, an arc-shaped tube 5 is fixed to one end of the rectangular rod 4 away from the torsion spring, a passage 6 corresponding to the arc-shaped tube 5 is formed in the main body 1, the passage 6 is communicated with the liquid outlet 2, the left end of the arc-shaped tube 5 is communicated with the three-way tube 3 through a hose 7, the right end of the arc-shaped tube 5 is closed and inserted into the corresponding passage 6, a small hole 8 is formed in the side wall of the right end of the arc-shaped tube 5, a sliding sleeve 9 capable of sliding is sleeved on the right end of the arc-shaped tube 5, the sliding sleeve 9 can control the opening and closing of the small hole 8, when the right end of the arc-shaped tube 5 is inserted into the passage 6, the sliding sleeve 9 is separated from the small hole 8, at this time, the arc-shaped tube 5 is communicated with the passage 6 through the small hole 8, a rectangular cylinder 10 is sleeved on the rectangular rod 4, the rectangular cylinders 10 in the two activity units are connected through a plurality of steel wires, a compression spring is sleeved on the rectangular rod 4, the compression spring makes the rectangular cylinder 10 have a reset function, a bent plate 11 shaped with the arc-shaped tube 5 is fixed to one side of the rectangular cylinder 10 close to the main body 1, when one of the bent plates 11 approaches and tightly contacts the corresponding arc-shaped tube 5, at this time, the rectangular tube drives the rectangular rod 4 in the other activity unit to be just at the hinge of the two rectangular rods 4 through the plurality of steel wires, so that the two rectangular rods 4 cannot be bent and present rigidity.

[0035] In order to ensure that the drainage tube is completely closed during the replacement of the drainage bottle, the cross valve 12 is installed at the liquid outlet 2, the cross valve 12 comprises a horizontal tube 13, a plugging piece 14 perpendicular to the horizontal tube 13 is arranged in the middle of the horizontal tube 13, the plugging piece 14 can control the opening and closing of the cross valve 12, and the right end of the cross valve 12 is communicated with the drainage bottle.

[0036] In order to prevent the liquid in the structure pipe and the passage 6 from leaking, the self-sealing unit 15 is arranged at the left end of the three-way tube 3 and the right end of the horizontal tube 13 in the cross valve 12.

[0037] The self-sealing unit 15 comprises a conical plugging block 16, a first rod 17 is hinged to the periphery of the plugging block 16 through a torsion spring, a second rod is hinged to one end of the first rod 17 away from the plugging block 16 through a torsion spring, and the second rod is hinged to the end of the three-way tube 3 or the horizontal tube 13, the included angle between the first rod 17 and the second rod is small in a natural state, and the plugging block 16 blocks the end of the three-way tube 3 or the horizontal tube 13, when the three-way tube 3 or the horizontal tube 13 is inserted into the pipe, the side wall of the pipe forces the included angle between the first rod 17 and the second rod to increase, so that the plugging block 16 moves away from the end of the three-way tube 3 or the horizontal tube 13, and the three-way tube 3 or the horizontal tube 13 is unblocked.

[0038] In order to prevent liquid in the passage 6 of the main body 1 from leaking when the cross valve 12 is accidentally separated from the main body 1, an annular protrusion 18 is arranged in the cavity of the liquid outlet, a baffle 19 is arranged on the left side of the annular protrusion 18, a tension spring is connected between the baffle 19 and the annular protrusion 18, a top rod is fixed on the right side of the baffle 19, and the right end of the top rod is located on the right side of the annular protrusion 18. When the left end of the cross pipe 13 in the cross valve 12 is inserted into the liquid outlet 2 and the baffle 19 is away from the annular protrusion 18, the passage 6 is in communication with the cavity of the cross pipe 13.

[0039] In order to prevent liquid in the cavity of the cross pipe 13 from leaking when the cross valve 12 is accidentally separated from the main body 1, self-sealing units 15 are arranged at both ends of the cross pipe 13.

[0040] In the above embodiment, as shown in FIGS. 1, 3, 4 and 5, in the initial state, the arc-shaped pipe 5 in one of the movable units is pressed towards the bed rail to be crossed and is pressed, and the arc-shaped pipe 5 rotates around the hinge at the end of the rectangular rod 4 after being pressed, as shown in FIG. 7. When the bed rail enters between the two movable units, the bed rail enters between the two movable units, and the two movable units return to the original state under the action of the torsion spring at the end of the rectangular rod 4. Since the hinge at the end of the rectangular rod 4 has not been wrapped by the rectangular cylinder 10 at this time, as shown in FIG. 8, the upper movable unit can rotate around the hinge of the rectangular rod 4 at this time. At this time, by bending the upper movable unit to the left, the purpose of crossing the bed rail by the whole device can be achieved.

[0041] If pressure continues to be applied after the state in FIG. 8, as shown in FIG. 9, the bed rail moves the upper rectangular cylinder 10 upwards through the bent plate 11, and the upper rectangular cylinder 10 moves the lower rectangular cylinder 10 upwards through multiple steel wires and reaches the hinge part of the two rectangular rods 4. Thus, the two rectangular rods 4 cannot rotate around the hinge, that is, the two rectangular rods 4 are rigid, finally making the two movable units firmly hold the bed rail so that it does not fall off. This state is suitable for patients to rest in a semi-recumbent position, and the drainage tube is hung up to prevent the drainage tube from being bent and to prevent passers-by from accidentally touching it.

[0042] In order to facilitate fast obstacle crossing and facilitate patients to get on and off the bed, a vertical standing plate 20 is arranged at the back of the upper movable unit, the left end of the standing plate 20 is hinged to the rectangular rod 4, the standing plate 20 can swing left and right, the lower edge of the standing plate 20 is near the hinge of the rectangular rod 4, and the right side of the standing plate 20 is close to the main body 1.

[0043] In the embodiment in which the standing plate 20 is installed, after the rail enters between the two movable units, pressure continues to be applied, at this time, the lower edge of the standing plate 20 is pressed upwards by the bed rail, so that the upper movable unit rotates as a whole around the hinge at the end of the rectangular rod 4, as shown in FIG. 10. Finally, after the bed rail completely separates from the movable unit, it returns to the initial state by itself, achieving the purpose of crossing.

[0044] In order to lock the whole device on the bed rail and avoid the whole device shaking on the bed rail, the middle part of the vertical plate 20 is provided with a limiting block 21, when the upper rectangular tube is moved upward and the corresponding bent plate 11 is hung on the limiting block 21, the lower rectangular tube wraps the hinge between the two rectangular rods 4, and the hinge between the two rectangular rods 4 is rigid and cannot be bent.

[0045] In the embodiment provided with the limiting block 21, on the basis of the state shown in Fig. 8, and before the bed rail exerts pressure on the vertical plate 20, at this time, the upper bent plate 11 is manually pulled and hung on the limiting block 21, at this time, the hinge between the two rectangular rods 4 is rigid and cannot be bent, so the upper movable unit is also fixed, and thus the two movable units and the vertical plate 20 limit the bed rail in a smaller range, so that the bed rail cannot be shaken at will in a large range, even if the pulling occurs, the pulling will not be transmitted to the chest, and thus the secondary damage to the chest will not occur.

[0046] It is worth noting that in order to make the right side of the vertical plate 20 closely contact with the main body 1 in work, there are many ways, for example, a damper is installed at the hinge position on the left side of the vertical plate 20, or the right end of the vertical plate 20 and the main body 1 are closely contacted by magnetic attraction, and there are many ways, which will not be listed one by one here. One end of the sliding sleeve 9 is provided with a spring, and after the sliding sleeve 9 is separated from the channel on the main body 1, the sliding sleeve 9 can slide along the arc-shaped tube 5 under the action of the spring and block the small hole 8.

[0047] The cross valve 12 in the application has a structure similar to that of a common valve, as shown in Figs. 12 and 13, if it is necessary to save cost, the valve structure commonly used in a urine bag can be used, and the difference is that the self-closing unit 15 is arranged at both ends of the cross valve 12, the purpose is to prevent the liquid in each part from leaking out as much as possible after accidental disconnection, and it is also a reasonable improvement according to the use environment and requirements.

[0048] In the application, when the bed rail passes through the two movable units in sequence, the channel 6 in the main body 1 is temporarily exposed, and in actual use, there is actually no big problem, because the exposure time is short, and even shorter than the exposure time when the existing technology changes the drainage bottle, so it is not necessary to worry about this place. If the extreme is pursued, a ring-shaped protrusion 18, a baffle 19 or the like structure can be arranged at the intersection between the channel 6 and the arc-shaped tube 5 to realize self-sealing and avoid liquid leakage in the channel 6.

[0049] In the application, the intersection between the channel 6 and the arc-shaped tube 5 can be provided with a stepped hole structure, as shown in Figs. 6 and 14, the stepped surface of the stepped hole can closely contact and seal with the sliding sleeve 9, and the diameter of the channel 6 is much larger than that of the arc-shaped tube 5, so when the right end of the arc-shaped tube 5 is inserted into the channel 6, the arc-shaped tube 5 can communicate with the channel 6 through the small hole 8 at the right end of the arc-shaped tube 5.

[0050] From the overall idea, the whole joint structure has the functions of obstacle crossing, line arrangement, preventing mispulling, self-sealing after mispulling and breakage, suspending the drainage line and isolating the pulling to prevent secondary injury, etc. Compared with the traditional drainage tube, the present application has the above-mentioned multiple functions, and most importantly, the present application can make the patient get in and out of bed more conveniently and quickly, and will not appear the danger of back suction, which has very important significance for both doctors and patients.

[0051] In use, in the initial state as shown in Figures 1, 3, 4 and 5, the tee pipe 3 in the present application is connected with the chest drainage tube, the cross valve 12 is connected with the drainage bottle, and the vertical plate 20 is attached to the main body 1. For the convenience of explanation, it is assumed that the patient needs to rest, and the bed rail is raised, at this time, the drainage tube needs to be placed in the bed rail, as shown in Figure 7, downward pressure is applied, the bed rail forces the lower movable unit to rotate downward around the end hinge of the rectangular rod 4, realizing the accommodation of the bed rail, and the bed rail enters between the two movable units, as shown in Figure 8; then continue to apply downward pressure, at this time, the state is as shown in Figure 10, the vertical plate 20 forces the upper movable unit to rotate outward, so that the rail is separated from the whole structure upward, at this time, the crossing action has been realized.

[0052] When the patient cannot get out of bed but needs to rest, take a semi-recumbent position, at this time, the drainage tube can be hung on the bed rail, on the basis of the above-mentioned Figure 8, and before the bed rail exerts pressure on the lower edge of the vertical plate 20, the upper side bending plate 11 is pulled upward and hung on the limiting block 21 on the vertical plate 20, at this time, the bed rail is limited in a smaller range, and the lower rectangular cylinder 10 makes both rectangular rods 4 unable to rotate and rigid, at this time, the two movable plates are firmly limited on the main body 1, thus, the drainage tube is hung on the bed rail.

[0053] The present application has a clever structure, which makes the drainage tube have the function of crossing the barrier and the bed rail, facilitates the patient to get in and out of bed, avoids the phenomenon of back suction, and is beneficial to the recovery of the patient's chest; at the same time, it can be automatically sealed after being disconnected, which is convenient for replacing the drainage bottle; the drainage tube is hung on the bed rail, even if a passer-by accidentally touches the drainage bottle, it will not cause the displacement of the end of the drainage tube in the chest cavity, avoiding secondary injury to the chest cavity, which is beneficial to the recovery of the patient.

Claims

1. A self-sealing chest drainage tube with a wire-free railing-crossing connector, characterized in that, The utility model provides a kind of liquid outlet (2) is arranged at the right end of the main body (1), and the left side of the main body (1) has three-way pipe (3), and there are two movable units between three-way pipe (3) and the main body (1), and effusion can reach liquid outlet (2) by movable unit; The movable unit includes rectangular rod (4), and the rectangular rod (4) in two movable units is hinged together by torsion spring;Arc-shaped tube (5) is fixed to the end of rectangular rod (4) away from torsion spring, and channel (6) corresponding to arc-shaped tube (5) is arranged in main body (1), and channel (6) is communicated with liquid outlet (2), arc-shaped tube (5) is communicated with three-way pipe (3) by hose (7) between left end and three-way pipe (3), and right end of arc-shaped tube (5) is closed and inserted into corresponding channel (6), and small hole (8) is arranged on the side wall of right end of arc-shaped tube (5);Sliding sleeve (9) is sleeved on the right end of arc-shaped tube (5), and sliding sleeve (9) can control the opening and closing of small hole (8);When the right end of arc-shaped tube (5) is inserted into channel (6), sliding sleeve (9) is separated from small hole (8), and at this time, arc-shaped tube (5) is communicated with channel (6) by small hole (8);Rectangular cylinder (10) is sleeved on rectangular rod (4), and rectangular cylinder (10) in two movable units is connected by multiple steel wires, compression spring is sleeved on rectangular rod (4), and compression spring makes rectangular cylinder (10) have reset function, and the side of rectangular cylinder (10) close to main body (1) is fixed with bending plate (11) shaped with arc-shaped tube (5);When one of bending plate (11) is close to and close to corresponding arc-shaped tube (5), at this time, the rectangular tube drives the rectangular rod (4) in the other movable unit to be just at the hinge of two rectangular rods (4), so that two rectangular rods (4) cannot be bent and are rigid.

2. A self-sealing chest tube over-bar connector according to claim 1, wherein, Cross valve (12) is installed at liquid outlet (2), and cross valve (12) includes horizontal pipe (13), and horizontal pipe (13) is provided with sealing element (14) perpendicular to it in the middle, and sealing element (14) can control the opening and closing of cross valve (12);Cross valve (12) is communicated with drainage bottle at right end.

3. A self-sealing chest tube over-bar connector according to claim 1, wherein, The left end of three-way pipe (3) and the right end of horizontal pipe (13) in cross valve (12) are provided with self-sealing unit (15).

4. A self-sealing chest tube over-bar connector according to claim 3, wherein, The self-sealing unit (15) includes conical sealing block (16), and the first rod (17) is hinged on the periphery of the sealing block (16) by the torsion spring, and the second rod is hinged on the end of the three-way pipe (3) or the horizontal pipe (13) by the torsion spring away from the first rod (17). In the natural state, the included angle between the first rod (17) and the second rod is small, and the sealing block (16) blocks the end of the three-way pipe (3) or the horizontal pipe (13). When the three-way pipe (3) or the horizontal pipe (13) is inserted into the pipeline, the side wall of the pipeline forces the included angle between the first rod (17) and the second rod to increase, so that the sealing block (16) moves away from the end of the three-way pipe (3) or the horizontal pipe (13), and the three-way pipe (3) or the horizontal pipe (13) is unobstructed.

5. A self-sealing rib drainage tube over-bar joint according to claim 1, wherein The right end liquid outlet (2) of the main body (1) is internally provided with an annular protrusion (18), the left side of the annular protrusion (18) is provided with a baffle (19), the baffle (19) and the annular protrusion (18) are connected with a tension spring, the right side of the baffle (19) is fixed with a top rod, the right end of the top rod is located at the right side of the annular protrusion (18), when the cross valve (12) is inserted into the liquid outlet (2) and the baffle (19) is away from the annular protrusion (18), the channel (6) is communicated with the cavity of the horizontal pipe (13).

6. A self-sealing chest tube over-bar connector according to claim 5, wherein, The left and right ends of the horizontal pipe (13) are provided with self-closing units (15).

7. A self-sealing ribbed bar joint for a chest drainage tube according to claim 1, wherein The rear side of the movable unit on the upside is provided with a vertical stand (20), the left end of the stand (20) is hinged with the rectangular rod (4), the stand (20) can swing left and right, the lower edge of the stand (20) is near the hinge of the rectangular rod (4), and the right side of the stand (20) is close to the main body (1).

8. A self-sealing chest tube over-bar connector according to claim 7, wherein, The middle part of the stand (20) is provided with a limiting block (21), when the rectangular tube on the upside is moved upward and the corresponding bent plate (11) is hung on the limiting block (21), the rectangular tube on the downside wraps the hinge between the two rectangular rods (4), and the two rectangular rods (4) are rigid and cannot be bent.

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